| 摘要 |
PROBLEM TO BE SOLVED: To provide an electroconductive tin oxide powder which has high-electroconductivity, transparency, water repellency, fluidity, and wettabilty by resins and organic solvents, and has no fear of toxicity, and also is hard to increase in the resistance value due to an aged deterioration. SOLUTION: The electroconductive tin oxide powder containing substantially no antimony, is such that a tin oxide powder has an organic surface-treatment layer formed on the surface of particles, with the above organic surface-treatment layer being formed by drying a coating agent containing at least one kind of an organic surface treatment component selected from the group consisting of a fatty acid, a fatty acid compound, oil and fat, gelatin, a silicone oil, a modified silicone oil, a silane coupling agent, a titanate-based coupling agent and an aluminate-based coupling agent, and with the above tin oxide powder having a powder pH of 1.5-4, and a residual salt content of 0.7-300μmol/g, and also with the above organic surface-treatment layer being formed preferably in an amount of 0.05-10 parts by weight relative to 100 parts by weight of the above tin oxide powder. COPYRIGHT: (C)2006,JPO&NCIPI
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